Driving device for fasteners



Dec. 24, 1935'.

R. S, WAGNER DRIVING DEVICE FOR FASTENERS Filed April l5, 1954 Fig 2 Sheets-Sheet 1 INVENTOR.

y ATTORNEY;

Dec. 24, 1935. R. s. WAGNER 2,025,185

DRIVING' DEVICE FOR FASTENERS I Y Filed April 13, 1954 2 sheets-smet 2 Patented Dec. 24, 1935 UNITED STATES PATENT OFFICE E. R.. Wagner Manufacturing Company, Milwaukee, Wis., a corporation of Wisconsin Application April 13, 1934, Serial No. 720,425

9 Claims.

Thisv invention relates to a device for driving fasteners and is particularly designed and adapted for driving the prongs of hinges into the walls of a box or tray, or the like. The invention also relates to a novelhinge connection adapted to be produced'with accuracy and facility by the drivingrdevice of the present invention.

One object of the invention is to provide a device of this character which expeditiously and cleanly drives theprongs into the parts to be hinged together and which is effective to accomplish this purpose even though the hinged parts differ substantially in their size. Provision is made for the automatic compensation for uncontrollable and slight variations in dimensions.

Another objectief the invention is to provide a device of this character which not only applies a forceful and direct driving action to the prong but which also operates to hold the parts to be hinged together in proper relation to each other during the driving operation.

Other objects and advantages reside in certain novel features of the construction, arrangement and combination of parts which will be hereinafter more fully described and particularly pointed out inthe appended claims, reference being had to the accompanying drawings forming a part of this specification, and in which:

Figure 1 isa view'partly in end elevation and partly'in vertical cross section illustrating a device embodying the present invention at the completion o-f a driving operation;

Figure 2 is a fragmentary view partly in side elevationand-partly in section further illustrating the-device shown in Figure 1;

Figure 3 is a view in vertical section taken on line 3-3 of Figure 2;

Figure 4 is a sectional View taken on line 4 4 of Figure 1;

Figure 5 is a view in top plan illustrating the anvilor rest of the device with a portion broken away and a part `shown in section for the sake of illustration;

Figure 6 is a View in transverse or horizontal section taken on line @-6 of Figure 1;

Figure 'l is a similar vView taken on line 'I-l of Figure 2;.- and Figure 8 is a perspective view illustrating a pronged hinge of the type contemplated .by the :present invention.

Referringto thefdrawingsfand more particularly to Figures 1 and 2, it will be seen that the invention proposes generally an anvil or work support designated generally at W and a driving tool designatedgenera'lly at D.

slots 2 and 3, and then tightening these studs after 10 the desired adjustment is had, it is practical and convenient to change the vertical position of the work supporting member 8. On the opposite side of the bracket l from the member 8, a xed work supporting member Ill `is provided and is secured 15 in place by headed studs or-bolts II extending through openings in the vertical portion of the member' lll'and threadedly connected with the bracket plate I.

The work supporting members 8 and' Illare f provided with yieldably mountedv work engaging pads designated at l2 and i3. These pads I2 and- !3 are similar in construction and each is provided on its undersurface with a plurality of spring sockets designated-atv it, and guides I5, the sockets and guides beingmade up of one piece'of metal, if desired. 'Ihesocket and guide structures I4 Yand I5 are fastened to theirrespective pads by means of screws I5.

Similar sockets ll and I3 are formed in the work supporting members t and Iii and are vertically alined'with the sockets and guides I4 -and I 5 of the pads I2 and lt. Coil springs I9 have their endsreceived in the alined sockets I 4 and I'! ofthe pads and work supporting member. Guide bolts 2t are threaded into the lower ends of the sockets I of the work supportingfmembers and are slidably intertted with the guides I5 of the pads I2 and I 3. Springs 2l encircle the guide bolts and are interposed between the guides l5 and the lower ends of the sockets I8 `to aid the springs llin urging the pads I2 and I3 upwardly. The heads 2li of the guide bolts 20 limit the upward movement of the pads I2 and I3. Sufcient space is provided between the socket and guide structures l@ and I5 and the work supporting member proper to allow of the relative movement that may occur in order 'to compensate for uncontrollable dimensional variations in the lower section. Y

A thin and flat metal plate 2li is interposed between the work .supporting members 8 and I0. This plate 24 is somewhat elongated and extends above and below the work supporting members. Complemental recessesin the work supporting yso soi

members 8 and lli and a similar recess 25 in the bracket plate l accommodate the plate 24, as will be understood from Figures l, 2, 4 and 6. The plate 24 has slots 28 registering with the slots 2 and 3 to accommodate the bolts 5 and its lower portion is provided with a thirdlengthwise slot 21 with which a clamping screw 28 ccacts to secure the plate in the desired vertical adjustment. The clamping screw 28 has wings 29 facilitating its manipulation and its threaded shank extends through the slot 21 and threads into an opening provided therefor in the plate l.

As illustrated in Figures 1 and 2, the sections of a box or the like are designated at B and B and the hinge employed to unite or connect the Walls of these box sections is designated at H. The prongs P provided on each leaf or member of the hinge are driven down into the adjacent walls of the box sections so as to be completely embedded therein and securely engaged therewith although retaining their straight form.

In effecting the driving of these prongs, the sections of the box are rst placed in the position shown on the pads I2 and I3 of the work support and in such position they are located on the opposite sides of the plate l5. It will be appreciated that the plate 24 serves two purposes, one to prevent displacement of either box section from o-ne work supporting pad towardthe other and the other. to so space the box sections'that the sleevelike bearings or pivot receiving members of the hinge will be located exteriorly of the box in the finished product.

The driving tool comprises a body portion 30 and has a driving face 3| conforming in contour to that of the hinge, that is, flat to engage flat surfaces of the hinge members and recessed to accommodate the sleeve-like bearings of the pivotal connection therebetween, as shown in Figures 1 and 3. In order to adapt the driving tool to operate upon hinges 'of different sizes, its active or driving surface may be provided on a plurality of driving heads designated at 32, 33 and 34'?.

The driving heads 32, 33 and 34 are magnetized so that the operator may conveniently position the hinges thereagainst when the tool is up. Under the influence of magnetization the hinges are retained in proper position on the driving tool and they may be accurately spotted by virtue of the provision of a stop plate 42, the structure and relatio-nof which to the other elements of the driving tool will be hereinafter more fully set forth. When the hinge is positioned against the driving tool its prongs are directed and properly alined and related to the upper edges of the box so that when this tool comes down it forces the prongs into the material of the box sections with the prongs remaining parallel or substantially parallel to the mean plane of the walls of the box into whichthey are driven.

The driving heads 32, 33 and 34 are of similar construction though they may differ in size. Each comprises a pair of similar sectionsk 35 (see l Figure 3) having reduced attaching portions 36 Yembracing the oppositesides of 'areduced extenion 31 of the body portion 30 of the driving tool. The attaching portions 36 have slots 38 therein through which bolts 39 pass, the bolts 39 also extending through bolt holes provided therefor in the extension 31. Clamping bars 4!) engage the attaching portions 36, the bolts 39 also passing through bolt openings in said clamping bars. These bars 40 are engaged by the heads of the bolts 39 and the nuts threaded thereon and are Veffective to secure the driving heads 32. 33 and 34 in various vertical adjustments. When the upper ends of the attaching portions 36 are spaced from the shoulder presented at the juncture of the body portion 33 and its extension 31 it is usually desirable to back up the driving heads 5 with one or more shims such as shown at 4l in Figures 2 and 3. A stop plate 42 may be fastened Y by screws 133 to one end of the body portion 30 of the driver to aid in spotting or properlyV positioning the hinges slipped in under the plunger or i0 driver for the other end thereof.

It will be appreciated that with large size hinges all three driving heads are active during the driving o-peration whereas with rthe small sizes, in some instances two and in other instances only 15 one head is active. Any suitable mechanism may be employed to impart the driving motion to the driving tool. The mechanism of any suitable type of punch press or hand press may be advantageously employed. The tool itself in the hands 20 of the operator may be eifectively employed under some circumstances.

In addition to the function of imparting the driving force to the hinge prongs the .driving tool is equipped with means to secure or hold the 25 box sections in proper position against the spacing and centering plate 24 throughout the driving operation. This means comprises a pair of box holders designated at 50 and 5|. These holders are of similar construction and are dis- 30 posed on theV opposite 'sides of the driving tool. Each holder comprises a plate-like body portion having at its lower end a pair of Aholding fingers 53. The body portion 52 of each holder and its' fingers 53 are angularly related, that is, inclined 35 with respect to each other as will be clearly understcod from Figure 1, and are provided with a number of openings for the reception of their mounting and setting or stop screws. As shown in Figures i and 2, two mounting screws 54'are 40 provided for each holder, the mounting screws extending thro-ugh openings provided in the holders and being threaded into the body portion of the driving tool. A coil spring 56 is mounted on each mounting screw and is compressed between the head thereof and the margin of the opening in the holder through which such screw passes. These springs are under tension and urge the holders toward the body portion of the driving tool and consequently toward each other. 'V

For the purposeof controlling with precision the spacing of the holders each is provided with a setting screw 58 threaded in its holder and adapted to bear against the body portion of the driving tool. Lock nuts 59 secure the setting 55 screws into adjusted position. The lower ends of the holding fingers are sloped or curved to enable them to ride smoothly over the surfaces of the box sections during the driving operation.

From the foregoing, it will be appreciated that 60 when the driving tool descends the holding fingers first engage the box sections and clamp them firmly in position against the plate 24, and all ofV this prior to the driving of theV prongs into the walls of the box under the action of the driving head. This insures the maintenance of the box sections in proper relation to each other so that when the driving heads engage the hinge members and act to force the prongs into the material thereof, displacement of the box sections is preeluded and the proper driving of the prongs is insured. The relative vertical adjustment between the work supports 8 and l0 readily adapts the device for operation upon box sections of unequal size and any uncontrollable variations in CJD Cil

dimensions resulting from sanding operations, shrinkage, or the like, are taken care of by the spring mounting of the pads I2 and I3. The springs which support these pads are suilciently stiff to provide the reaction necessary to enable the driving tool to force the prongs home, but in the event that the prongs of one leaf of the hinge should be driven entirely home before the same is true of the prongs of the other leaf then the pad supporting the box section in which the driving operation has been completed yields or is pressed downwardly while the driving of the prongs of the other leaf is completed.

With a device of the p-resent invention the operation of driving the prongs is greatly speeded up so that production on a commercial scale and at slight expense is made practical and convenient. Furthermore, the prongs are cleanly and properly driven and may be driven into the material of the box sections in such a way that no portion thereof is visible. A neat and ornamental product is the result.

'I'he hinge connection itself possesses many advantages, especially in that the prongs are concealed, no clinching over of the same is required, and yet a secure and permanent fastening is had.

While I have shown and described one construction in which the invention may be advantageously embodied, it is to be understood that this construction has been selected merely for the purpose of illustration and example and that various changes in the size, shape and arrangement of the parts may be made without departing from the spirit of the invention or the scope of the subjoined claims.

The invention claimed is:

l. A device of the character described comprising a bracket plate, work supporting members, means for fixing one of the work supporting members to the bracket plate, and means for adjustably connecting the other Work supporting member to said bracket plate, each of said work supporting members having a yieldably mounted work engaging pad, in combination with a driving tool cooperable with said work supporting members.

2. A device of the character described comprising a bracket plate, work supporting members, means for fixing one of the Work supporting members to the bracket plate, and means for adjustably connecting the other work supporting member to Said bracket plate, each of said work supporting members having a yeldably mounted work engaging pad, in combination with a driving tool cooperable with said work supporting members, said driving tool having a driving head and work engaging members for maintaining the work in proper work supporting position during the driving operation.

3. A device of the character described comprising work supporting members and a plate disposed between said members and projecting thereabove to aid in maintaining the work in proper position on said members, in combination with a driving tool having' means supplementing the action of said plate and maintaining the work in proper position on said members during the driving operation.

4. A device of the character described comprising a bracket plate, work supporting members disposed on the opposite sides of said plate, at least one of said members being adjustably secured to the plate,`each of said members having a yieldably mounted work engaging pad, in combination with a driving tool having a driving head and provided with holding fingers projecting in advance of the driving head and engageable with the work to maintain the work in position on said pads.

5. A device of the character described comprising work supporting members, each of said work supporting members having a yieldably mounted work engaging p-ad, a centering plateV disposed between and projecting above said pads, in combination with a driving tool having a driving head, and means projecting in advance of the driving head and cooperable with the work for holding the same against the centering platel and in proper position on said pads.

6. A device of the character described comprising a bracket plate, a pair of work'supporting members disposed on the opposite sides of said plate, means for securing the members to the bracket plate in such manner that at least one of the work supporting members is adjustable relative to the plate, a centering plate disposed between and projecting above the work supporting members, and a driving tool cooperable with said work supporting members and said centering plate to effect proper driving of fastening devices into work positioned on said work supporting members.

7. A device of the character described comprising a work supporting member and a driving tool having a body portion and a reduced extension and a plurality of driving heads having portions straddling said reduced extension and fastened thereto, said driving heads having active or driving surfaces adapted to operate upon fastening devices of different size.

8. A device of the character described comprising a work support and a driving tool cooperable therewith and comprising a body portion and driving heads, means carried by the tool for maintaining the work in position on the support during the driving operation and comprising a pair of work holding members rockably mounted on the body portion of the tool, and elastic means for restraining said members against rocking movement, said work holding members having holding ngers projecting in advance of the driving head of the tool.

9. A device of the character described comprising work supporting members, a centering plate disposed between and projecting above said members, in combination with a driving tool having a driving head and means projecting in advance of the driving head and cooperable with the Work for holding the same against the centering plate and in proper position on said work supporting members.

ROBERT S. WAGNER. 

